guard 'rspec', cmd: 'rspec' do
  watch(%r{^spec/.+_spec\.rb$})
  watch(%r{^lib/(.+)\.rb$})            { |m| "spec/#{m[1]}_spec.rb" }
  watch(%r{^lib/shoes/mock/(.+)\.rb$}) { |m| "spec/shoes/#{m[1]}_spec.rb" }
end
